David bruce



Q i iuitml Ww tait/r Mw-era @anni Leners Patat: No. 83,828, [man Novanta 1o, 186s.

IMPROVEMENT IN TYPE-CASTING MACHINES.

The Schedule referred to in these 'Letters Patent and making part of the same.V

To all whom it may concern l Be it known that I,.Dsv'rn BRUCE, of Brooklyn, Kings county,v` and State of New York, have invented certain new and useful Improvements in Mechanism for Registering orGpverning the Motions of Printers Type-Casting Machines; andl do hereby declare that the following is a full description of thesame. The nature of my improvements consists- First, in combining, with the propelling-shaft of a .cam-wheel.

Fourth, in combining, with the upright'cam-lever, and frame to which it is attached, a horizontal typeregistering-lever.

Fifth, in combining, with the frame of the apparatus having an inclined gutter attached thereto, a horizontal type-registering leverliaving two type-registeringplates on its end, with openings through them, so arranged that both holes are opened only when the registeringlever is-raised to its greatest elevation.

-But t9 describe my invention more particularly, l will refer to the accompanying drawings, forming a part of this specification,- the same letters of reference, wherever they occur, lreferring to like parts.

Figure lis a-front elevation of the apparatus when disconnected from the driving-pulley.

y Figure 2 isalike view of the same, when connected with the driving-pulley.'

Figure 3 is a cut sectional view of the end of the apparatus, through the -line a: ig. 4.

Figure 4 is a plan view of the apparatus.

Figure 5 isa detached face-view of the face camwheel, andloose driving-pulley in connection therewith.

Letter A represents the bed-plate of a type-castingmachine, to which is attached, by any suitable means, a. ame, B, so arranged with reference to the motions and position of the type-mould as to receive the type instantly they are discharged therefrom, and the propolling-shaft C of the type-casting machine, as to admit of its operating the working-parts of the apparatus, simultaneously with the operations of the type-casting machine.

Letter D is a face cam-wheel, seein-ed rmly upon the propelling-shaft, and having a notch, E, cutiu its periphery. The object of this notch is to admit oi' a pawl, F, secured to the side of a loose pulley, G, on the propelling-shaft, engaging into it, to lock them together, to operate the type-casting -machine, through suitable cams for that purpose, secured on the propelling-shaft.

This engagement of the pawl into the notch of the cam-wheel is governed or controlled by the shape or outline of the face of the cam-wheel, operating upon a wedge-shaped or inclined-plane tappet, H, attached to and projecting from the side of an upright cam-lever, I, secured. by a centre-pin, to the front oi' the ame B, and its operations are as follows:

1When .the -upright cam-lever I is in the position 'shown in fig. l, the tappet H is projected back into a cavity, J, formed in the face of the cam-wheel. In this position it comes under the toe of the pawl, which being made bevelling, as shown in iig. 5, rides up and over the tappet, thereby lifting the pawlout ofthe notch E. By so doing, it allows the loose pulley to rotate, without rotating the propelling-shaft of the machine, and thus stops it from running instantly that the type mould gets choked, and ceases to deliver type to the registering-apparatus.

To set the machine in operation, the upright lever is thrown forward, as shown in iig. 2. This withdraws the notch in the periphery of the cam-wheel, (as shown in iig. 5,)'to couple o'r lock together the loose pulley with the propelling-shaft. By so doing, the tappet H comes upon the hat or plain face K of the cam-wheel, as shown in iig. 2, in which position it is when the type escape from the gutter of the apparatus. The tappet then passes on to the lower or depressed face L, (shown in'ii g. 2,) at which time the type M falls from the typemould into the gutter N, and at the same time the outer end of the horizontal registering-lever P is allowed, by the cam on the upper4 end of the upright lever I, to descend, so as to cnt oii the escape of the type from the gutter. This is done by means of two registeringplates, It* and R2, attached to the end of the registering-lever, and having discharging-holes, S and S2, in or through them, of unequal areas, and so arranged that the type, (as shown in tig. 3,) passes only through the opening S1 in plate Rl, when first falling into the gutter, and thus prevents the outer end of the rlever P from dropping down tothe position shown inig. 1, to force the tappet back and underl the toe of the pawl, to disconnect the loose pulley from the cam-wheel on the propelling-shaft of the typemachine.

The operation of the apparatus, therefore, is to stop the running of the type-casting machine automatically, whenever, from any cause, the mould fails to deliver type to the registeringapparatus, and is as follows:

When the type fall into the gutter from the mould, they slide down it, and through the opening S in the registering-plate R, as shown in g. 3. At this time the tappet H is acting against the depressed face L of the cam-wheel. It then passes over the cavity J, in

consequence of the type under or through the plate R' the tappet from under the pawl, so that it can fall intopreventing the' end of the registering-lever from descending, as shown in fig. l,l to force the tappet back under the pawl, and then comes upon the face K of the cam-Wheel. This causes the outer end of the registering level' to rise, as shown in iig. 2, to expose the opening S2. through the registering-plate It, and allows the type to escape from the gutter. As a second type descends the gutter, and passes through the opening S2, just as the first one escapes fronrthe apparatus, it will be obvious, that so long as type are fed into it, the end of l ,the registering-lever' can never descend,.as shown in iig. l, and thereby force the tappet back into the cavity ofthe cam-Wheel, to disengage the pawl from the notch in the edge of it to stop the machine. Therefore, when the type-mould is choked, or from other causes ceases to drop type into thegutter of the registering-apparatus, the le`ver will always drop down, in consequence of the pressure of the spring T on it, and stop the machine till the obstruction can 'be removed.

Letter U is a spring, for keeping the upiight camlever up to its work.

Having noiv described my inventionl I will proceed to set forth what I claim, and desire to secure by Letters Patent of the United States.

l. I claim the loose pulley G, having a pawl, F, attached thereto, in combination with the cam-wheel D, having a notch, E, in its periphery, substantially as hereinbefore set forth.

2. I also claim, in combination With the driving-shaft C, the cam-wheel D, having a cavity, J, in its face, and planes K and L, substantially described, and for the purposes hereinbefore set forth.

3. I also claim, the combination of .the upright camle'ver I, having'the tappet H attached thereto, with the said cam-wheel D, Whenformed as hereinbefore vdescribed.

4. I also claim the combination of the said upright purposes set forth.

' DAVID BRUCE. Witnesses W. BRUCE, .I/ Canarias L; BARRITT. 

